The Iwatobi High School Swim Club is participating in a joint training camp with the Samezuka Academy and Soufuukan High School teams. Sousuke is also participating as an alumnus. In the midst of the excitement, Rei and Nagisa notice that something is odd about Romio's swimming. Then Shizuru tells them the story of what happened to Romio in middle school...
The future: an illusion that 
gives us hope and expectation.
المستقبل: وهم يمنحنا الأمل والتوقّع
Die Zukunft: eine Illusion, die einem
Hoffnung und Erwartungen schenkt.
El futuro:
Una ilusión que nos da esperanza.
El futuro:
Una ilusión que nos da esperanza.
L’avenir, une illusion
où naissent espoir et attente.
Il futuro... ciò che fa nascere speranze e sogni.
O futuro, uma ilusão que nos
dá esperança e expectativas.
Будущее: иллюзия, которая дарит
надежду и ожидания.